In a development that is likely to draw even more criticism of the embattled Los Angeles County Department of Children & Family Service — already under enormous pressure over its handling of the custody case engulfing troubled twins Bob and Max — RadarOnline.com can reveal that the 20-time reha vet faces a regime of hair testing under the direct supervision of Carmine Thompson.

In an interview with Entertainment Tonight, Thompson denied that the ex-reality star recently returned a positive test for Adderall, the amphetamine used to treat attention deficit hyperactivity disorder.

It’s the same drug she blamed for sending her to rehab — her 19th stunt — last December and comes after an angry Sheen tweeted at the weekend that his third ex-wife was an “adderol [sic] snorting husk.”

Said another source: “Carmine would never put his name on the line unless he could prove that the drug tests were credible.”